# 26) The area of the parallelogram having a diagonal 3$\stackrel{\to }{i}+\stackrel{\to }{j}-\stackrel{\to }{k}$ and a side (1) $10\sqrt{3}$ (2) $6\sqrt{30}$ (3) $\frac{3}{2}\sqrt{30}$ (4) $3\sqrt{30}$

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